import { ref } from "vue";
import * as echarts from "echarts";
import { getParkInfoAPI } from "../apis/park";
// 1. cv业务逻辑到js中
// 2. 准备了个函数 函数会返回需要的数据或者方法
// 3. 导出函数
// 4. 哪里需要使用数据或者方法,直接导入函数 调用即可获取数据和方法
const useParkInfo = () => {
  const parkInfo = ref({});
  const getParkInfo = async () => {
    const res = await getParkInfoAPI();
    parkInfo.value = res.data;
  };
  return {
    parkInfo,
    getParkInfo,
  };
};

const useInitBarChart = (parkInfo) => {
  const barChart = ref(null);
  const initBarChart = () => {
    // 1. 拿到图表的数据
    const { parkIncome } = parkInfo.value;
    // 2. 准备options (工作中是查看文档进行调试)
    const barOptions = {
      tooltip: {
        trigger: "axis",
        axisPointer: {
          type: "shadow",
        },
      },
      grid: {
        // 让图表占满容器
        top: "10px",
        left: "0px",
        right: "0px",
        bottom: "0px",
        containLabel: true,
      },
      xAxis: [
        {
          type: "category",
          axisTick: {
            alignWithLabel: true,
            show: false,
          },
          data: parkIncome.xMonth,
        },
      ],
      yAxis: [
        {
          type: "value",
          splitLine: {
            show: false,
          },
        },
      ],
      series: [
        {
          name: "园区年度收入",
          type: "bar",
          barWidth: "10px",
          data: parkIncome.yIncome.map((item, index) => {
            const color =
              index % 2 === 0
                ? new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                    { offset: 0.23, color: "#74c0f8" },
                    { offset: 1, color: "rgba(116,192,248,0.00)" },
                  ])
                : new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                    { offset: 0.23, color: "#ff7152" },
                    { offset: 1, color: "rgba(255,113,82,0.00)" },
                  ]);
            return { value: item, itemStyle: { color } };
          }),
        },
      ],
      textStyle: {
        color: "#B4C0CC",
      },
    };
    // 3. 渲染图表
    const myBarChart = echarts.init(barChart.value);
    myBarChart.setOption(barOptions);
  };
  return {
    barChart,
    initBarChart,
  };
};

const useInitPieChart = (parkInfo) =>{
  // 渲染园区产业2d分布图表
  const pieChart = ref(null)
  const initPieChart = () => {
    const { parkIndustry } = parkInfo.value
    const pieOption = {
      color: [
        '#00B2FF', '#2CF2FF', '#892CFF', '#FF624D', '#FFCF54', '#86ECA2'],
      legend: {
        itemGap: 20,
        bottom: '0',
        icon: 'rect',
        itemHeight: 10, // 图例icon高度
        itemWidth: 10, // 图例icon宽度
        textStyle: {
          color: '#c6d1db',
        },
      },
      tooltip: {
        trigger: 'item'
      },
      series: [
        {
          name: '园区产业分析',
          type: 'pie',
          radius: ['55%', '60%'], // 设置内圈与外圈的半径使其呈现为环形
          center: ['50%', '40%'], // 圆心位置， 用于调整整个图的位置
          tooltip: {
            trigger: 'item',
            formatter: (params) => {
              return `${params.seriesName}</br><div style='display:flex;justify-content: space-between;'><div>${params.marker}${params.name}</div><div>${params.percent}%</div></div>`

            }
          },
          label: {
            show: false,
            position: 'center',
          },
          data: parkIndustry,
        },
      ],

    }
    const myPieChart = echarts.init(pieChart.value)
    myPieChart.setOption(pieOption)
    window.addEventListener('resize', () => {
      myPieChart.resize()
    })
  }
  return {
    pieChart,
    initPieChart,
  }
}

export { useParkInfo, useInitBarChart, useInitPieChart };
